The !netext Command: Batch Physical Net Extraction

Syntax: !netextarguments...

PRELIMINARY - This is the initial implementation of a new capability.
Feedback and wish-lists from users is encouraged.

The !netext command performs identification and extraction of
physical wire nets from a layout. There are a number of modes and
features, but the final result is generally an OASIS file containing a
top-level cell with the same name as the original top-level cell,
which contains a subcell for every wire net. Each subcell contains
all of the conductors that comprise the net, as if the original
hierarchy were flat. This file can be used as a starting point for
further analysis, such as parasitic extraction using a field solver.